package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.*;
import com.sky.entity.*;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.OrderBusinessException;
import com.sky.exception.ShoppingCartBusinessException;
import com.sky.mapper.*;
import com.sky.result.PageResult;
import com.sky.service.OrderService;
import com.sky.utils.HttpClientUtil;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.OrderPaymentVO;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;
import com.sky.websocket.WebSocketServer;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.CollectionUtils;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;


@Service
public class OrderServiceImpl implements OrderService {
    @Value("${sky.shop.address}")
    private String shopAddress;

    @Value("${sky.baidu.ak}")
    private String ak;
    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private OrderDetailMapper orderDetailMapper;
    @Autowired
    private AddressBookMapper addressBookMapper;
    @Autowired
    private ShoppingCartMapper shoppingCartMapper;
    @Autowired
    private WeChatPayUtil weChatPayUtil;
    @Autowired
    private UserMapper userMapper;
    @Autowired
    private WebSocketServer webSocketServer;


    /**
     * 用户下单
     *
     * @param ordersSubmitDTO
     * @return
     */
    /**
     * 检查客户的收货地址是否超出配送范围
     * @param address
     */
    private void checkOutOfRange(String address) {
        Map map = new HashMap();
        map.put("address",shopAddress);
        map.put("output","json");
        map.put("ak",ak);

        //获取店铺的经纬度坐标
        String shopCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        JSONObject jsonObject = JSON.parseObject(shopCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("店铺地址解析失败");
        }

        //数据解析
        JSONObject location = jsonObject.getJSONObject("result").getJSONObject("location");
        String lat = location.getString("lat");
        String lng = location.getString("lng");
        //店铺经纬度坐标
        String shopLngLat = lat + "," + lng;

        map.put("address",address);
        //获取用户收货地址的经纬度坐标
        String userCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        jsonObject = JSON.parseObject(userCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("收货地址解析失败");
        }

        //数据解析
        location = jsonObject.getJSONObject("result").getJSONObject("location");
        lat = location.getString("lat");
        lng = location.getString("lng");
        //用户收货地址经纬度坐标
        String userLngLat = lat + "," + lng;

        map.put("origin",shopLngLat);
        map.put("destination",userLngLat);
        map.put("steps_info","0");

        //路线规划
        String json = HttpClientUtil.doGet("https://api.map.baidu.com/directionlite/v1/driving", map);

        jsonObject = JSON.parseObject(json);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("配送路线规划失败");
        }

        //数据解析
        JSONObject result = jsonObject.getJSONObject("result");
        JSONArray jsonArray = (JSONArray) result.get("routes");
        Integer distance = (Integer) ((JSONObject) jsonArray.get(0)).get("distance");

        if(distance > 5000){
            //配送距离超过5000米
            throw new OrderBusinessException("超出配送范围");
        }
    }
    @Transactional
    @Override
    public OrderSubmitVO submitOrder(OrdersSubmitDTO ordersSubmitDTO) {
        //判断业务异常 地址簿为空 购物车为空
        AddressBook addressBook = addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());
        if(addressBook==null){
            throw new  AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }
        //检测用户的收货地址是否超出配送范围
        checkOutOfRange(addressBook.getCityName()+addressBook.getDistrictName()+addressBook.getDetail());

        ShoppingCart shoppingCart = ShoppingCart.builder().userId(BaseContext.getCurrentId()).build();
        List<ShoppingCart> list = shoppingCartMapper.list(shoppingCart);
        if(list==null||list.size()==0){
           throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }
        //插入一条数据订单表
        Orders orders = new Orders();
        BeanUtils.copyProperties(ordersSubmitDTO,orders);
        orders.setId(null);
        orders.setOrderTime(LocalDateTime.now());
        orders.setPayStatus(Orders.UN_PAID);
        orders.setStatus(Orders.PENDING_PAYMENT);
        orders.setNumber(String.valueOf(System.currentTimeMillis()));
        orders.setPhone(addressBook.getPhone());
        orders.setConsignee(addressBook.getConsignee());
        orders.setUserId(BaseContext.getCurrentId());
        orders.setAddress(addressBook.getDetail());
        orderMapper.insert(orders);

        List<OrderDetail> orderDetailList=new ArrayList<>();
        //插入订单详情表
        for (ShoppingCart cart : list) {
            OrderDetail orderDetail = new OrderDetail();
            BeanUtils.copyProperties(cart,orderDetail);
            orderDetail.setOrderId(orders.getId());
            orderDetailList.add(orderDetail);
        }
        orderDetailMapper.insertBatch(orderDetailList);

        //删除购物车数据
        shoppingCartMapper.deleteByUserId(BaseContext.getCurrentId());

        OrderSubmitVO orderSubmitVO = OrderSubmitVO.builder().id(orders.getId()).orderTime(orders.getOrderTime())
                .orderAmount(orders.getAmount()).orderNumber(orders.getNumber())
                .orderNumber(orders.getNumber()).build();
        //返回数据返回id即可展示详情
        return orderSubmitVO;
    }

    /**
     * 订单支付
     *
     * @param ordersPaymentDTO
     * @return
     */
    public OrderPaymentVO payment(OrdersPaymentDTO ordersPaymentDTO) throws Exception {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();
        User user = userMapper.getById(userId);

        //调用微信支付接口，生成预支付交易单
        JSONObject jsonObject = weChatPayUtil.pay(
                ordersPaymentDTO.getOrderNumber(), //商户订单号
                new BigDecimal(0.01), //支付金额，单位 元
                "苍穹外卖订单", //商品描述
                user.getOpenid() //微信用户的openid
        );

        if (jsonObject.getString("code") != null && jsonObject.getString("code").equals("ORDERPAID")) {
            throw new OrderBusinessException("该订单已支付");
        }

        OrderPaymentVO vo = jsonObject.toJavaObject(OrderPaymentVO.class);
        vo.setPackageStr(jsonObject.getString("package"));

        return vo;
    }

    /**
     * 支付成功，修改订单状态
     *
     * @param outTradeNo
     */
    public void paySuccess(String outTradeNo) {

        // 根据订单号查询订单
        Orders ordersDB = orderMapper.getByNumber(outTradeNo);

        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();

        orderMapper.update(orders);

        //支付成功后，向客户端推送消息
        Map map=new HashMap();
        map.put("type",1);
        map.put("orderId",ordersDB.getId());
        map.put("content","订单号："+outTradeNo);
        String jsonString = JSON.toJSONString(map);
        webSocketServer.sendToAllClient(jsonString);
    }

/**
     * 分页历史订单列表
     *
     * @param page
     * @param pageSize
     * @param status
     * @return
     */
    @Override
    public PageResult pageQuery(int page, int pageSize, Integer status) {
        //设置分页
        PageHelper.startPage(page,pageSize);
        OrdersPageQueryDTO ordersPageQueryDTO = new OrdersPageQueryDTO();
        ordersPageQueryDTO.setStatus(status);
        ordersPageQueryDTO.setUserId(BaseContext.getCurrentId());
        Page<Orders> pageResult = orderMapper.pageQuery(ordersPageQueryDTO);

        List<OrderVO> list = new ArrayList<>();
        if(pageResult!=null && pageResult.size()>0){
            for (Orders orders : pageResult) {
                Long orderId = orders.getId();
                List<OrderDetail> orderDetailList =orderDetailMapper.getByOrderId(orderId);
                OrderVO orderVO = new OrderVO();
                BeanUtils.copyProperties(orders,orderVO);
                orderVO.setOrderDetailList(orderDetailList);
                list.add(orderVO);
            }
        }

        //封装成VOlist返回
        return new PageResult(pageResult.getTotal(), list);
    }

    /**
     * 订单详情
     *
     * @param id
     * @return
     */
    @Override
    public OrderVO details(Long id) {
        //查询订单
       Orders order= orderMapper.selectById(id);
        //根据订单号查询订单详情
        List<OrderDetail> orderDetailList = orderDetailMapper.getByOrderId(id);
        //拷贝order属性然后返回vo
        OrderVO orderVO = new OrderVO();
        BeanUtils.copyProperties(order,orderVO);
        orderVO.setOrderDetailList(orderDetailList);
        return orderVO;
    }
    /**
     * 取消订单
     *
     * @param id
     */
    @Override
    public void cancel(Long id) {
        //根据id查询订单
        Orders order = orderMapper.selectById(id);
        //如果订单不存在 抛出业务异常
        if(order==null){
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        //判断订单状态是否不是待付款 或者 待接单
        //订单状态 1待付款 2待接单 3已接单 4派送中 5已完成 6已取消

        if(order.getStatus()>2){
            //如果不是 抛出业务异常
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        if(order.getStatus()==Orders.TO_BE_CONFIRMED){
            //如果是 则判断订单状态是不是待接单 如果是 则退款 并且更新订单装状态 不是则直接更新订单状态
            //调用微信支付退款接口
//            weChatPayUtil.refund(
//                    ordersDB.getNumber(), //商户订单号
//                    ordersDB.getNumber(), //商户退款单号
//                    new BigDecimal(0.01),//退款金额，单位 元
//                    new BigDecimal(0.01));//原订单金额

            //支付状态修改为 退款
            order.setPayStatus(Orders.REFUND);
        }
        order.setStatus(Orders.CANCELLED);
        order.setCancelReason("用户取消");
        order.setCancelTime(LocalDateTime.now());
        orderMapper.update(order);
    }

    /**
     * 再来一单
     *
     * @param id
     */
    @Override
    public void repetition(Long id) {
        //获取当前用户id
        Long userId = BaseContext.getCurrentId();

        //根据id获取订单详情列表
        List<OrderDetail> orderDetailList = orderDetailMapper.getByOrderId(id);
        //将订单详情列表的数据进行转换成购物车对象列表
        List<ShoppingCart> shoppingCartList = orderDetailList.stream().map(orderDetail -> {
            ShoppingCart shoppingCart = new ShoppingCart();
            BeanUtils.copyProperties(orderDetail, shoppingCart, "id");
            shoppingCart.setUserId(userId);
            shoppingCart.setCreateTime(LocalDateTime.now());
            return shoppingCart;
        }).collect(Collectors.toList());
        //批量插入到购物车表中
        shoppingCartMapper.insertBatch(shoppingCartList);
    }

    @Override
    public PageResult conditionSearch(OrdersPageQueryDTO ordersPageQueryDTO) {
        //分页
        PageHelper.startPage(ordersPageQueryDTO.getPage(), ordersPageQueryDTO.getPageSize());
        Page<Orders> pageOrderList= orderMapper.conditionSearch(ordersPageQueryDTO);
        //获取分页数据
        List<Orders> ordersList = pageOrderList.getResult();
        //封装属性返回Vo
        List<OrderVO> orderVOList=getOrderVoList(ordersList);
        return new PageResult(pageOrderList.getTotal(),orderVOList) ;
    }

    /**
     * 获取订单OrderVO列表
     * @param ordersList
     * @return
     */
    private List<OrderVO> getOrderVoList(List<Orders> ordersList){
        List<OrderVO> orderVOList=new ArrayList<>();
        if(!CollectionUtils.isEmpty(ordersList)){
            for (Orders orders : ordersList) {
                OrderVO orderVO = new OrderVO();
                BeanUtils.copyProperties(orders,orderVO);
                List<OrderDetail> orderDetailList = orderDetailMapper.getByOrderId(orders.getId());
                String orderDishes = getOrderDishesStr(orderDetailList);
                orderVO.setOrderDishes(orderDishes);
                orderVOList.add(orderVO);
            }
        }
        return  orderVOList;
    }

    /**
     * 获取订单菜品信息封装成字符串返回
     * @param orderDetailList
     * @return
     */
    private String getOrderDishesStr(List<OrderDetail> orderDetailList){
        List<String> stringList = orderDetailList.stream().map(orderDetail -> {
            return orderDetail.getName() + "*" + orderDetail.getNumber();
        }).collect(Collectors.toList());
        String orderDishes = String.join(",", stringList);
        return orderDishes;
    }

    /**
     * 统计订单数据
     * @return
     */
    @Override
    public OrderStatisticsVO statistics() {
        OrderStatisticsVO orderStatisticsVO = new OrderStatisticsVO();
        //待接单
        Integer toBeConfirmed = orderMapper.countStatus(Orders.TO_BE_CONFIRMED);
        //待派送
        Integer confirmed = orderMapper.countStatus(Orders.CONFIRMED);
        //派送中
        Integer deliveryInProgress = orderMapper.countStatus(Orders.DELIVERY_IN_PROGRESS);
        orderStatisticsVO.setConfirmed(confirmed);
        orderStatisticsVO.setDeliveryInProgress(deliveryInProgress);
        orderStatisticsVO.setToBeConfirmed(toBeConfirmed);
        return orderStatisticsVO;
    }

    /**
     * 接单
     * @param ordersConfirmDTO
     */
    @Override
    public void confirm(OrdersConfirmDTO ordersConfirmDTO) {
        Orders orders = Orders.builder().id(ordersConfirmDTO.getId())
                .status(Orders.CONFIRMED)
                .build();
        orderMapper.update(orders);

    }

    /**
     * 拒单
     * @param ordersRejectionDTO
     */
    @Override
    public void rejection(OrdersRejectionDTO ordersRejectionDTO) {
        //判断订单是否为待接单状态
        Orders ordersdb = orderMapper.getById(ordersRejectionDTO.getId());
        //如果不是 则抛出业务异常
        if(ordersdb!=null && !ordersdb.getStatus().equals(Orders.TO_BE_CONFIRMED)){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        //如果是 判断支付状态是否为支付过了 则更新订单状态为 拒单 设置原因 然后退款
        if(ordersdb.getPayStatus()==Orders.PAID){
            Orders orders = Orders.builder().id(ordersRejectionDTO.getId())
                    .status(Orders.CANCELLED).rejectionReason(ordersRejectionDTO.getRejectionReason())
                    .cancelTime(LocalDateTime.now())
                    .payStatus(Orders.REFUND)
                    .build();
            orderMapper.update(orders);
        }
    }

    /**
     * 管理员取消订单
     * @param ordersRejectionDTO
     */
    @Override
    public void adminCancel(OrdersRejectionDTO ordersRejectionDTO) {
        Orders ordersdb = orderMapper.selectById(ordersRejectionDTO.getId());
        //判断订单是否为待接单状态
        if(ordersdb== null){
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        //只要不是待接单或者已完成都可以取消
        if(ordersdb.getStatus()<3||ordersdb.getStatus()==Orders.COMPLETED){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orders=new Orders();
        //订单已支付则更新订单状态为 退款
        if(ordersdb.getPayStatus()==Orders.PAID){
            orders.setPayStatus(Orders.REFUND);
        }
        orders.setId(ordersRejectionDTO.getId());
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason(ordersRejectionDTO.getRejectionReason());
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);
    }

    /**
     * 派送订单
     * @param id
     */
    @Override
    public void delivery(Long id) {
        //派送订单 只有已接单的订单才可以派送
        Orders ordersdb = orderMapper.getById(id);
        if(ordersdb==null){
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        if(ordersdb.getStatus()!=Orders.CONFIRMED){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orders = Orders.builder().id(id)
                .status(Orders.DELIVERY_IN_PROGRESS)
                .build();
        orderMapper.update(orders);

    }

    /**
     * 完成订单
     * @param id
     */
    @Override
    public void complete(Long id) {
        Orders orderdb = orderMapper.getById(id);
        if(orderdb==null){
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        if(orderdb.getStatus()!=Orders.DELIVERY_IN_PROGRESS){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orders = Orders.builder().id(id)
                .status(Orders.COMPLETED)
                .deliveryTime(LocalDateTime.now())
                .build();
        orderMapper.update(orders);
    }

    /**
     * 催单
     * @param id
     */
    @Override
    public void reminder(Long id) {
        Orders ordersdb = orderMapper.getById(id);
        if(ordersdb==null){
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        Map map = new HashMap();
        map.put("type",2);
        map.put("orderId",id);
        map.put("content","订单号："+ordersdb.getNumber());
        webSocketServer.sendToAllClient(JSON.toJSONString(map));
    }
}
